For spot prevention, try cutting back on the amount of salt you eat - although essential in small amounts, salt encourages fluid retention (preventing you from having a 'flat stomach' and giving you a puffy face and eye bags! - yet another bad consequence too much salt!) and it can irritate the lining of your pores, because excess salt is eliminated through your skin via perspiration, Iodised salt (table salt) exacerbates acne, so cutting back can really help clear up your skin.